Gore Running Wear Women's Air Lady Socks 90% Polyamide/10% Elastane Imported Running socks designed not to move inside the shoes, with cushioned and reinforced areas where protection is needed, and extra venting where this is needed. Main structure made with light mesh for comfort 2-way elastic mesh with alternating stitches knitting for best perspiration and perfect fit Foot arch with anti-twist elastic band Left and right anatomical structure Wave-shaped cuff for ergonomic wear Main structure made with light mesh for comfort 2-way elastic mesh with alternating stitches knitting for best perspiration and perfect fit Foot arch with anti-twist elastic band Wave-shaped cuff for ergonomic wear